public static void Check(ListableEntity obj)
{
if (obj == null)
{
return;
}
}
/// <summary>
/// Update操作前的数据检查，确保数据不会误导ID,CreateTime, ModifyTime，比如 PUT /asset/105 但是提供的数据里面id=106。
/// </summary>
/// <param name="accid"></param>
/// <param name="id"></param>
/// <param name="value"></param>
/// <returns></returns>
bool UpdateProtectListableEntity(string accid, ListableEntity value)
{
ListableEntity src = Get(accid, value.Id) as ListableEntity;
if (src == null)
{
return(false);
}
value.CreateTime = src.CreateTime;
value.ModifyTime = DateTime.UtcNow;
return(true);
}
/// <summary>
/// Update操作前的数据检查，确保数据不会误导ID,CreateTime, ModifyTime，比如 PUT /asset/105 但是提供的数据里面id=106。
/// </summary>
/// <param name="accid"></param>
/// <param name="id"></param>
/// <param name="value"></param>
/// <returns></returns>
async Task <bool> UpdateProtectListableEntityAsync(string accid, ListableEntity value)
{
var src = await GetAsync(accid, value.Id) as ListableEntity;
if (src == null)
{
return(false);
}
value.CreateTime = src.CreateTime;
value.ModifyTime = DateTime.UtcNow;
return(true);
}
/// <summary>
/// 更新一个对象，value=null或者id找不到则返回null，内部已经做了访问权限判断
/// </summary>
/// <param name="id"></param>
/// <param name="value"></param>
/// <returns></returns>
public T Update(string accid, T value)
{
if (CanUpdate(accid, value.Id) == false)
{
return(null);
}
ListableEntity entity = value as ListableEntity;
if (entity != null)
{
UpdateProtectListableEntity(accid, entity);
}
var res = GetDataSet(accid).FirstOrDefault(d => d.Id == value.Id);
if (res == null)
{
return(null);
}
DataCopyer.CopyDataTo(value, res);
context.SaveChangesAsync();
return(res);
}
